Diatomaceous Earth Insecticide is a duo-bug and slug killer and is also effective in killing aphids, cutworms, root maggots, cabbageworms, earwigs, fleas, silverfish, and more. Insects cannot develop resistance. The fine dust cloud sticks to wet plant surfaces and infiltrates insect hiding places. Protect against inhalation. Diatomaceous Earth Insecticide is derived from the finely milled fossiized remains of prehistoric freshwater diatoms. The find dust is "squirted" through the narrow, pointed applicator cap into specific areas such as down into cracks, or directly into insect nests. It is not intended as pest control for broadcast in the garden. This product is 26cm tall and has a diameter of 8cm.